PT-2026-77273 · Context7 · Context7

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CVE-2026-75130

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Published

2026-08-18

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Updated

2026-08-19

CVSS v3.1

9.0

Critical

VectorAV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Context7 versions prior to 2.1.2
Description A prompt injection issue exists where unsanitized content can be injected through the Custom AI Instructions feature served via the MCP server. This allows attackers to execute malicious instructions in connected AI coding agents. Potential impacts include the exfiltration of credentials from environment files to an external service and the destructive deletion of files on the victim's machine during routine library documentation requests.
Recommendations Update Context7 to version 2.1.2 or later. Restrict the use of the Custom AI Instructions feature until the update is applied.

Exploit

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-75130

Affected Products

Context7